After defeating Chykka, Samus reclaims the energy from the Dark Torvus Temple and returns it to the Torvus Temple, where she injects the energy into the Energy Controller. Immediately, the system reacts, improving weather conditions and refracting a ray of light through a lens, focusing the energy into a beam that is directed all the way back to the Main Energy Controller, where U-Mos witnesses its light. A-Voq's hologram appears for the final time to bow in thanks to Samus.

After Samus restores the Light of Aether to the Agon, Torvus, and Sanctuary Temples, she can access Aether's Light-Based Teleportation System and instantly teleport to any of the other Energy Controllers using the Light Suit.

References

↑"Object analysis complete. This is a regional Energy Controller. Unit regulates planetary energy in this sector, and is linked to a global energy network." —Scan Data (Metroid Prime 2: Echoes)

↑"A great warrior comes to the Temple of Torvus. May you succeed where I failed. I am A-Voq, the last Sentinel of the temple. Heed my words carefully. As you can see, this temple has been crippled by the ravages of war. While the main chamber has been mostly preserved, the remainder of the temple has been flooded. You must use your abilities to venture into these flooded areas and find the keys you need to enter the Dark Temple." —A-Voq (Metroid Prime 2: Echoes)

↑"The waters of Dark Aether are foul and venomous. Avoid them if you can. I have updated your Translator Module. You can access devices and doors coded with Emerald holograms. Search the areas now opened to you. The Ing will seek your light with great zeal. Do not underestimate them! The time for talk is over. Good hunting, and may the Light of Aether guide your aim." —A-Voq (Metroid Prime 2: Echoes)

↑"Find the keys to the temple of Dark Torvus. Find them and conquer that miserable place! Let there be an end to this struggle." —A-Voq (Metroid Prime 2: Echoes)

↑"Our champion used a device that made moving through liquid like moving through air. The Ing have taken it. If you wish to explore Torvus freely, you will take it from them!" —A-Voq (Metroid Prime 2: Echoes)

↑"Our champion wore a visor that pierced the veil of Dark Aether’s eternal night. Take it back from the Ing. Let no darkness slow your mighty hand." —A-Voq (Metroid Prime 2: Echoes)